I have had some rumors saying that dragon is one of the The Seven Warlords of the Sea (shichibukai) well i been thinking about it and the possibility of him being one of them are really high since the one's introduced so far are all animal related in some way, i dont see why he wouldn't fit the catalogue since he is really strong and the marines dont seem to go after him coz maybe he might be protected my the world government....well i'm just curious, i hope any of you got any ideas
so far these are the current shichibukai's
Dracule "Hawkeye" Mihawk (Hawk)
Donquixote Doflamingo (Flamingo)
Bartholemew Kuma (Bear)
Jimbei (Whale Shark)